TY  - GEN
AU  - Hamer, Jan
TI  - 1,4 cycloaddition reactions: the diels alder reaction in hetrocyclic synthesis
T2  - Organic chemistry a  sreries of monographs
U1  - 541.393 HAM 
CY  - Newyork, Academic press
KW  - 1,4- cycoaddition reaction / phosphorous compound
ER  -